lua: move digraph handling to separate 'plugin'

Load a standard plugins directly from vis-std.lua.

1 files changed, 23 insertions, 0 deletions

diff --git a/lua/plugins/digraph.lua b/lua/plugins/digraph.lua
new file mode 100644
index 0000000..b783612
--- /dev/null
+++ b/lua/plugins/digraph.lua
@@ -0,0 +1,23 @@
+-- insert digraphs using vis-digraph(1)
+
+vis:map(vis.modes.INSERT, "<C-k>", function(keys)
+	if #keys < 2 then
+		return -1 -- need more input
+	end
+	local file = io.popen(string.format("vis-digraph '%s' 2>&1", keys:gsub("'", "'\\''")))
+	local output = file:read('*all')
+	local success, msg, status = file:close()
+	if success then
+		if vis.mode == vis.modes.INSERT then
+			vis:insert(output)
+		elseif vis.mode == vis.modes.REPLACE then
+			vis:replace(output)
+		end
+	elseif msg == 'exit' then
+		if status == 2 then
+			return -1 -- prefix need more input
+		end
+		vis:info(output)
+	end
+	return #keys
+end, "Insert digraph")